There are only two points in time here – registered address 1.1.2006 and 1.1.2007. The first animation sequence is therefore in the order provided by the tax au

There are only two points in time here – registered address 1.1.2006 and 1.1.2007. The first animation sequence is therefore in the order provided by the tax authorities and roughly follows postal codes (starting in Oslo, moving round the coast up to Northern Norway). The particles simply spawn at a fixed rate as we move through the data with the camera attempting to follow the spawn points. Whenever you reach a large city you'll see a concentrated burst as you ascend through its postal codes. Other orderings can be quite informative as well: sorting for age or income in a particular region can display distinct patterns for segments of groups. As was pointed out: the particle animation is too complex to have much salience, but I'm prepared to argue that the slower animations towards the end show clear patterns when comparing different demographies.